Kingsbottle Mlf450 User manual

OPERATION MANUAL

BIOMEDICAL FREEZER

BIOMEDICAL FREEZERS

BEFORE USE, PLEASE READ AND FOLLOW

ALL SAFETY RULES AND OPERATING INSTRUCTIONS

Applicable Models: MLF450 | MLD450 | MLRF450

MLF450 Biomedical Freezer

MLD450 Ultra Low Temperature Freezer

MLRF450 Combined Refrigerator and Freezer

INTRODUCTION

Thank you for choosing KingsBottle for your

refrigeration needs. For safe use, please read this

manual carefully and follow all instructions. Store

this manual near the device for quick referral. "

We cannot guarantee safety if this applicant is used

for objects other than the intended use or used in

any way other than laid out in this manual. "

The contents of this manual can change without

notice due to improvement of performance or

function of the device. Contact our sales

representatives if there are any questions about the

information contained in this manual. No part of this

manual should be reproduced in any form without

written permission from KingsBottle. "

For important safety notices, please read pages 4-6.

Only trained and authorized personnel should

operate this biomedical freezer. Only qualiﬁed

service personnel or an authorized agent should

install or provide maintenance for this device. "

Only use spare parts sold by KingsBottle. If other

accessories are used, we cannot be held

responsible for any adverse consequences.

However, the user can apply for veriﬁcation of third-

party accessories from KingsBottle before use. "

You should inspect and maintain the device

according to the speciﬁed time intervals found in

this manual.. "

Due to diﬀerences between each model and

improvements of the devices, the actual product

may diﬀer from the diagrams included. "

Users have an obligation to be responsible for their

own safety. "

When products are removed from the freezer, always

wear protective gloves. Handling contents or

touching inside the unit without protective gear can

cause frostbite or other injuries.

CONTENTS

BIOMEDICAL FREEZERS

TABLE OF CONTENTS

Chapter

Contents

Page

Part I

Precaution For Safe Operation

4-5

Part II

Precaution For Use

Part III

Installation Instructions!

7-8

Part IV

Diagram & Description of Freezer

Part V

Operating the Freezer

10-13

PART VI

Maintenance Guide

Part VII

After-sale Service

Annex1: Rechargeable Battery

Maintenance,Installation,Replacement and Disposal

Annex2: About installation of printer paper for optional

printer.

Annex3: Remote alarm terminal and RS485 interface

15-16

Part VIII

Speciﬁcations

Part IX

Warranty Information

PART I PRECAUTIONS FOR SAFE OPERATION

Please read this user manual carefully and store near the device for

quick referral. The following symbols will be used throughout this

manual:"

WARNING

Failure to observe WARNING signs could be hazardous to

personnel, possibly resulting in serious injury or death.

CAUTION

Failure to observe CAUTION signs could result in injury to

personnel and damage to the unit or associated property.

CAUTION HOT

This sign informs the user about the danger of burns from

high temperatures.

DANGER OF EXPLOSION

This sign is a warning of the application of volatile or

explosive chemical substances.

DO NOT TILT

AVOID DIRECT SUNLIGHT

WARNING

•Failure to observe the WARNING signs could be

hazardous to personnel, causing serious personal injury or

even death.

•Because of the presence of carbon dioxide, it is necessary

to evaluate the worksite to ensure proper ventilation. If

ventilation seems to be restricted, consider other ways to

ensure a safe environment: atmospheric monitoring or

other warning equipment.

•Do not touch any electrical parts (power supply plug or

any switches) with a wet hand. This can cause electric

shock.

•Only qualiﬁed engineers or service personnel should install

this unit. Installation by unqualiﬁed personnel may cause

adverse events like electric shock or ﬁre.

•Be sure to install the unit on a sturdy ﬂoor. If the ﬂoor is not

sturdy or the installation site has inadequate ﬂooring, the

unit may fall or tip over resulting in injury.

•Be careful with the power cord to avoid short circuits or

open circuits. When removing the plug from the power

outlet, grip the plug and not the cord. Pulling the cord my

result in electric shock or ﬁre.

•When installing the unit, do not push the power line up

against the wall or other furnishings. Leave room for the

compressor and heat source as well.

•Use the dedicated power supply according to the

instructions on the rating level provided with the device. If

you exceed this value, a performance transformer or

appropriate voltage regulator should be installed to ensure

safe operation. Otherwise, this may cause damage to the

freezer or injury to the user.

•Do not tilt the device or hit the device for any reason.

Because of the registration system, unexpected vibration

can damage the freezer.

•To avoid overheating, short circuits, or other dangers,

install the device in a dry, dust-free environment.

•If the unit makes unexpected sounds, smells, or smoke

when turned on, unplug the unit and contact the

manufacturer or supplier. Continued operation may cause

electric shock or ﬁre.

•Install freezer in a dry and ventilated environment to ensure

proper ventilation of the unit. Using the device in a poorly

ventilated environment may cause damage by the release

of heat.

•Do not disassemble, repair, or modify the unit yourself. Any

such work carried out by unauthorized personnel may

result in ﬁre or injury due to malfunction of the unit.

•Storing volatile or ﬂammable substances in this unit may

cause an explosion or ﬁre. Storing corrosive substances in

this unit may lead to damage to the inner components or

electrical parts.

•Ensure a safe environment when dealing with poisonous,

radioactive, or other harmful substances. Improper use

can have a detrimental effect on your health or

environment.

•Do not ground the unit near a gas pipe, water main,

telephone line, or lightning rod. Such grounding may cause

electric shock in the case of an incomplete circuit.

•Use a power supply outlet that is properly grounded to

prevent electric shock. If it is not grounded, it will be

necessary to install a ground by a qualiﬁed engineer.

SAFETY

PART I PRECAUTIONS FOR SAFE OPERATION

Use a power supply outlet that is properly grounded to

prevent electric shock. If it is not grounded, it will be

necessary to install a ground by a qualiﬁed engineer.

Don't lengthen the line randomly. If you need to use

2.5mm 2 copper line, keep the 4mm 2 lines to connect the electrical

outlet.

Be sure to install the unit on a sturdy ﬂoor, no shaking

or tilting. "

Never install the unit in a ﬂammable or volatile location.

This may cause explosion or ﬁre.

Never install the unit in a humid place, outdoor or a place

with direct sunlight. Deterioration of the insulation may

result which could cause current leakage or electric

shock.

CAUTION:

Failure to observe WARNING signs could result in

injury to personnel and damage to the unit or

associated property. "

•This biomedical freezer should not be used for inanimate

objects, ﬂowers, or other items that are not suitable for low-

temperature settings.

•During usage, the temperature inside the unit is very low. Do

not touch the interior surface or any objects inside without

protective gear.

•Always disconnect the power plug when the unit is not used

for long periods.

•When you request any repair or maintenance, have a safety

check sheet prepared for the safety of service personnel.

•Check all settings on the controller prior to restarting the

freezer.

•The biomedical freezer should only be used as a storage

device.

•Always hold the handle while closing the door. This will reduce

the likelihood of injury to your hand.

•Restrict access to the key from unauthorized personnel to

avoid unexpected injury.

•Locate an even and sturdy ﬂoor for installation. This will prevent

the unit from tipping or falling. Improper installation may result

in injury.

•Regularly check the ﬁlter and clean it as necessary. This will

avoid possible overheating of the unit.

•When moving the unit, do not tilt it more than 45 degrees.

Transportation should be handled with care.

SAFETY

BIOMEDICAL FREEZERS

PART II PRECAUTIONS FOR USE

•When the temperature in the freezer has reached the set temperature, put the items in the freezer in batches. No more than 1/3 of the volume of

items should be used per batch to avoid the temperature rising too much.

•The temperature display will show the temperature around the sensor initially. There will be a difference between the displayed temperature and

the actual temperature in the center of the unit at ﬁrst. The center temperature will gradually approach the displayed temperature.

•To clean the interior surface, use lukewarm water or a diluted neutral detergent and a soft cloth. Do not use brushes, acid, gasoline, soap

powders, polish or hot water. These materials may damage the paint surface or plastic and rubber parts. Do not use volatile solvents to wipe

plastic or rubber parts.

•If the unit is not used for long periods of time, disconnect the plug from the power source.

SAFETY

PART III INSTALLATION

INSTALLATION ENVIRONMENT

•The Ambient temperature is 16°C~32°C, while the optimal ambient temperature is 18°C~25°C. An air conditioning system may be required to

maintain ambient temperature.

•Relative humidity: ≤80%RH

•No strong vibration and no corrosive gases nearby.

•Large amounts of dust should not be present.

•No shaking or vibrating of the freezer.

•The altitude of the location of the freezer: ≤2000m

•Input voltage ≤110+10% (V)

•No direct sunlight or any other cooling or heating source and no electromagnetic interference or the freezer will not run properly.

INSTALLATION SITE

This unit is meant for precision. When selecting a location to install this unit, you need the following conditions for perfect performance:"

•Should not be installed in a small conﬁned space, and the door of the room should not be less than the height of the unit.

•Install the unit on a sturdy ﬂoor to avoid excessive vibration and noise.

•Installing the unit in direct sunlight may cause malfunctioning and may shorten the life of the unit. Good ventilation is necessary.

•Socket inputs should be connected to circuit protection facilities.

•Check the working voltage of the place before starting the freezer. A voltage stabilizer is suggested to be used at the place where the voltage is not

stable. Make sure the normal input voltage is stable at or 110V± 10%. Power of voltage stabilizer should be more than 4KW.

•Be sure to ground the unit; If the power cord socket is equipped with grounding wire, check the connection before use. If the power supply outlet is

not grounded, it will be necessary to install a ground by qualiﬁed engineers.

WARNING

•Grounding through a gas pipe, water pipe, line or lightning rod can cause electric shock.

•After installation, the power plug must be within reach and convenient to unplug the power cord in case of an emergency.

•There should be no items covering the air vents of the biomedical freezer.

CAUTIONS BEFORE USE

CAUTION: Do not put the packing plastic within reach of children as suffocation may occur

•Remove all package components (include the protection foam inside the package).

•Check the device, accessories and documents with the device as per the list of packing.

•Clean the interior surface with lukewarm water using a soft cloth.

•Before use, make sure the temperature control probe is properly immersed in the test liquid.

INSTALLATION

BIOMEDICAL FREEZERS

PART III INSTALLATION

STANDING

•After unpacking, the freezer must be allowed to stand upright for at least 2 hours to allow the lubricant and refrigerant to ﬂow back to the

compressor and stabilize. Failure to do so may affect the performance and service life of the freezer.

FOR INITIAL START

Operate as follows for the ﬁrst start:"

•Connect the power cord to the appropriate socket.

•Do not open the door during the cooling process. This will cause the temperature to rise.

•There must be an authorized person responsible for the freezer in the facility to check the operation status and make daily records. The inside

temperature of the cabinet will rise up during a failure. If it is not available to be repaired in a short time, take out the stored items and transfer to

another safe location.

•Before putting the articles inside the freezer, please check if the temperature set range of this device is matching the requirement of the articles.

•Due to the consistency of refrigeration, there is a little difference between the actual temperature displayed on the controller and the set

temperature. This is a normal phenomenon.

•Biomedical freezers are storage devices, do not put excessive amounts of “hot” items into the freezer at one time. This can cause compressor

damage because of unnecessary overuse. It is important to put in items in batches and wait for temperature to reach desired value for next batch.

•Do not put electric devices in the freezer without permission.

•Do not change the setting temperature frequently within a short time. The actual temperature may not reach the set temperature. Do not cover

sensors in the freezer when you put in samples and keep distance between the samples and the inner side of the freezer to make sure the cold air

will circulate throughout the freezer. Failure to do so will cause instability of the inner temperature and inaccuracy of the display temperature.

•The freezer controller has a memory of set points. When restarting the freezer after a power failure, the freezer will continue to follow the previous

operation. Restart after 5 minutes to avoid damage to the compressor.

INSTALLATION

PART IV DIAGRAM & DESCRIPTION OF FREEZER

FEATURES

As the product is improved and the model changes, the actual product may be different from the sample diagram.

The above picture is only an example of the identiﬁer function piece.

Structure and composition: the product consists of a box, a glass door structure, a refrigeration system, and a control system.

Scope of application: This product is suitable for hospitals, pharmacies, epidemic prevention stations, research institutions, biopharmaceutical

departments and so on.

BIOMEDICAL FREEZERS

MLRF450 Combined Refrigerator and Freezer

MLF450 Biomedical Freezer

MLD450 Ultra Low Temperature Freezer

PART V DISPLAY PANEL FUNCTION DESCRIPTION

OPERATION

1. Function description of control panel

a. The temperature display will show the average

temperature of the upper chamber and the lower chamber inside the

unit while under normal conditions. The temperature is displayed in

Celsius.

b. Door status indicator

When the door opened, the light is on; when the door is closed, the light

is off.

c. Fault indicator light: When the product runs normally, the indicator

light is off; The indicator light is on for operation abnormality.

d. is the button to turn on the light.

The default state of the lamp is off. Use this key to turn the light on

and off. When off, the light will turn on when the door is open and off

when closed. If turned on, the light will remain on with the door is

opened or closed. The unit has two settings: automatic lighting and

manual lighting. With automatic lighting, the light will turn on when the

door is opened and will turn off after 5 seconds. The user can

manually control the light with this button. When the light is manually

turned off, the unit will enter the automatic lighting state.

e. is the printing key.

The system can keep the data for 7 days to print. Press the print key

to print the temperature at any time.

f. is the up key.

In the parameter setting mode, you can move to the next parameter,

or increase the parameter value. For example, when setting the set

temperature, this will increase the temperature. When setting

parameters, the up button will increase the amount of each

parameter. In normal state, data can be imported by pressing the up

key for 3 seconds.

g. is the down key.

In the parameter setting mode, this will move to the previous

parameter or reduce the parameter value.

When setting the set temperature, the temperature is reduced when

pressed.

h. is the set / mute key. Press this for the inside temperature.

After 5 seconds, the normal display is restored.

While the unit is unlocked, press for 3 seconds to enter the

unit’s menu.

When the alarm is sounding (including the cabinet high temperature

alarm, the door open alarm, the sensor fault alarm, etc.), press

and the buzzer will stop. The display will show the temperature for 5

seconds before returning to normal display.

While the unit is unlocked, you can use as the settings key.

In the unlocked state, when setting parameter mode, press this key

to display the parameter and parameter name. If the press time is

longer than 3 seconds, the settings will be saved and the display will

return to the normal interface.

i. USB data export.

Automatic export: when the USB disk is connected to the USB

interface, the unit will buzz once, display "on", and the PDF ﬁles are

generated for the current month and the last month. After the data

transmission is completed, the unit will buzz once again, display

"end", and then will return to normal display after 6 seconds

Manually export: once the USB disk is inserted, press the for

3 seconds. The display will show “d01” and you can press up or

down to select from d01-d012: previous one month to previous

twelve months. Select the number of months then press to

conﬁrm the data you want downloaded.

Note: when the digital display ﬂickers "LoF", the recorder has not

started; press at the same time, the "LoF" will disappear

after 3 seconds ,the buzzer will sound once, and the recorder will

start.

2. Functional settings:

A. Connect the power supply and ﬂip the power switch located on the

back of the unit. The unit will then enter the normal working state.

B. To access user parameter settings, ﬁrst unlock the unit.

To unlock: under normal operating conditions, press for 3

seconds at the same time, the digital display will show PS1 in the upper

chamber and the code “0000" in the lower chamber, enter the default

password “0005" (if the password is changed, enter "0099" to restore the

default lock password back to “0005"). It is unlocked at this time.

After unlocking, press for 3 seconds, the digital display will show the

parameter code "PS1", enter the desired parameters. Use to

adjust.

Display→PS1→"b1→"b2→Set1→"H01→"L01→"Set2→"H02→"L02→"n→y→"

r→"S→"F→Pt→tH1→"P1→"Ps1.

Press to conﬁrm the parameters, the display name of the type of

parameter will be displayed.

(1) scroll through parameters with or ;

(2) select to show corresponding parameter value;

(3) use or to increase or decrease the value;

(4) press to return to the parameters menu.

(5) if other parameters need to be modiﬁed, repeat step 1 ~ (4);

(6) press for 3 seconds to store the changed and return to the

parameters menu

C. If there is no button pressed for 60 seconds, the parameters menu will

be exited.

OPERATION

BIOMEDICAL FREEZERS

D. Parameter display.

OPERATION

Serial

Number

Parameter Range

Suggest Setting

Values

Remarks

- -

Hardware version

- -

Software version

Set1

MLF series: -10~-25

MLD series: -20~-40

MLRF series: 2~8

MLF series: -25

MLD series: -40

MLRF series: 5

Upper chamber temperature setting

H01

0.0 ~ 10.0

5.0

High temperature alarm set value +H;

H=0 when the alarm is cancelled.

When the temperature is too high, the high temperature

alarm shows H1

L01

0.0 ~ 10.0

5.0

Low temperature alarm set value -L;

L=0 when the alarm is cancelled.

When the temperature is too low, the low temperature

alarm shows L1

Set2

MLF series: -10~-25

MLD series: -20~-40

MLRF series: -10~-40

MLF series: -25

MLD series: -40

MLRF series: -40

Lower chamber temperature setting

H02

0.0 ~ 10.0

5.0

High temperature alarm set value +H;

H=0 when the alarm is cancelled.

When the temperature is too high, the high temperature

alarm shows H2

L02

0.0 ~ 10.0

5.0

Low temperature alarm set value -L;

L=0 when the alarm is cancelled.

When the temperature is too low, the low temperature

alarm shows L2

0 ~ 240min

Print interval

tH1

20.0 ~ 50.0°C

Upper limit of high temperature alarm

1: Automatic heating mode 1

2: Automatic heating mode 2

3: Automatic heating mode 3

4: always on

5: always off

1 the door body with

condensation is set to 4

Mode 1: When door is closed, it will automatically heat

the window for 5 minutes. If during this period, the door

is open and closed again, the heating time will start from

the beginning.

Mode 2: When the compressor is running, the heater is

on; when the compressor is off, the heater is delayed for

1 minute.

Mode 3: When the humidity in the cabinet is greater

than 80%, the door is heated. Once the humidity is less

than 60%, the heater will stop.

Mode 4: The door heating is always on.

Mode 5: The door heating is always off.

PS1

0000~9999

0005

User menu password settings

OPERATION

E. Alarm Display

Once the power supply is switched on for the biomedical freezer, do not immediately add items. The unit needs to operate for a period of 24 hours before

the items can be stored in the freezer.

If the item you are adding has too much water or if excessive drying will change the humidity of the unit, it is best to have the item thoroughly sealed. The

humidity of the freezer will affect the heating of the door.

When storing items, start by adding only 1/3 of the unit’s capacity. Wait for the temperature to return to desired setting (up to 24 hours), then add enough

items to ﬁll another 1/3 capacity.

When adding items, do not block access to other items stored in the unit.

Let the cooling process happen for as long as possible before opening the door. This will cause the temperature to rise.

Due to the location of the thermostat, the unit might have slightly different temperatures than what appears on the display. This is normal and the unit will

take time for the temperature to balance throughout the unit.

Note: children should not play in or around the biomedical freezer.

BIOMEDICAL FREEZERS

Alarm code

Issue description

H01

Upper chamber high temperature alarm

L01

Upper chamber low temperature alarm

H02

Low chamber high temperature alarm

L02

Low chamber low temperature alarm

H03

High ambient temperature alarm

Door

Door open alarm

Power failure alarm

Low battery alarm

Communication failure

Upper chamber temperature sensor alarm

Lower chamber temperature sensor alarm

Recorder is not connected

USB Data logging failure

LoF

Recorder did not start

PART VI MAINTENANCE

CAUTION

•For personal safety, please unplug the power supply before any maintenance! "

•Don't inhale medications or aerosols around the device or it will endanger your health. The biomedical freezer is direct-cooling and may have

the risk of icing. It is recommended to observe the thickness of the ice and remove it in time (usually 30 days at 25 °C). "

Defrost, Unused, and Maintenance

•The biomedical freezer will automatically defrost during the working process."

•Unused: If the unit is not used for long time, please disconnect power supply and keep up the maintenance."

•Maintenance: Every so often, the biomedical freezer should be cleaned and maintained. For the sake of safety, ﬁrst unplug the unit. Then wipe

the inner and outer surfaces of the freezer with a soft cloth. "

CAUTION:

•DO NOT sprinkle water on the surfaces of the unit. This may decrease insulating property of electric parts and could cause rust. "

•DO NOT use hot water, corrosive cleanser, or organic solvent! "

•Avoid intense vibration or collision with unit during transportation. Keep out of rain."

Suitable conditions: temperature: - 40°C ~ + 55°C, relative humidity: 10% ~ 90%. "

Disposal

Warning:"

If the equipment is stored in unsupervised areas for a long period of time and left unused, ensure that children cannot access the biomedical freezer.

The disposal of the freezer shall be carried out by corresponding personnel to prevent the occurrence of such accidents as suﬀocation. "

MAINTENANCE

PART VII AFTER-SALE SERVICE

Please observe the correct operation of this biomedical freezer. If there is any issue, please troubleshoot the error with the following table. If the

issue cannot be ﬁxed, please inform our service center. We will serve you as quickly as possible to avoid any loss items or time.

AFTER-SALE SERVICE

BIOMEDICAL FREEZERS

PROBLEM

POSSIBLE CAUSE

Freezer is not running

Power outage has occurred

The plug is bad or not securely plugged-in

Fuse is blown

Voltage is too low or high

Compressor is not running

Power in control panel is off

Temperature setting is wrong

The temperature does not reach the set value

The door is not closed properly or is opened too frequently

There is too many items in the unit

Outside temperature is too high

Loud noise

The unit is not level

The unit is leaning on a wall

Surface condensation on door

When the weather is humid, condensation might collect on the door. This can be expected. Wipe

condensation with dry cloth.

The door is not closed properly, and the cool air

leaks

After the freezer is used for a period of time, the door seal becomes hard and deformed.

Maintenance method: Blow the deformed part of the hot seal with a blower to soften it, and then

close and compress it after the door seal becomes soft.

Alarm ﬂashing, buzzing

If you just put in an item, the temperature will need to stable and the alarm will reset automatically

after running for a period of time.

If the door is not closed tightly, the door open alarm will sound.

If the battery is low, the alarm will ﬂash and will turn off after a period of time.

Alarm will ﬂash when the temperature exceeds the set temperature.

The below may happen during normal operation:

•There are some light noises when the compressor starts up and stops.

•After opening the door and placing in hot items, the control system will show high temperature and/or high humidity alarm.

Solution: hot items should be cooled by natural cooling before placing in unit. Do not put too many items in at one time. After the temperature

is stabilized, the high temperature and/or high humidity alarm will turn off.

•You will hear the sound of running water through the refrigerant pipes.

•Before calling the service engineer, please clean and disinfect the refrigerator.

Condition: do not shake heavily or strike. Avoid rain or other water drenching the unit.

Storing environment temperature:-40°C~+55°C, Relative humidity: 10%~ 90%.

Annex1:"Rechargeable"Battery"Maintenance,"Installation,"Replacement"and"Disposal""

During long term power failure or in the process of transportation, the main power switch must be turned off. Otherwise, this could cause battery loss or

permanent damage, and may not work normally after returning power to unit.

Maintenance of rechargeable batteries: In order to prolong the battery life, please avoid idling the product. It is better to run the product more than 24 hours

monthly to recharge.

Battery"Maintenance""

A. If you are not using the freezer for long periods of time, you should plug in the unit once a month and turn on the power. Let the battery recharge for at

least 24 hours before turning back off and unplugging.

B. If the power supply is interrupted, you should switch the unit off. Failure to do so can cause the battery to lose power and possibly have permanent

damage.

C. The life of the battery is about 2 to 3 years. If you near the end of the battery life or if it is not properly used, the low battery alarm will sound. This will not

affect the usage of the freezer but can cause alarm failure and problems with printing functions. Contact after-sales service staff to replace the battery.

1. Battery Installation Position: Top inside of electrical box

2. Battery replacement

a. Turn off the power switch and unplug the unit from the socket. (Power supply must be off and unplugged before opening the electrical cabinet. This

cabinet should only be opened by a qualiﬁed engineer or maintenance personnel).

b. Remove the battery connection plug. (Before unplugging the cord, make note of the sequence of the battery’s positive and negative connections and their

lines. Do not reverse these when installing new battery to prevent control system damage. The red line should be connected to the positive pole, the black

line to the negative pole.)

c. Remove the two screws from the battery plate with screwdriver then remove the battery.

d. New replaced battery model: BT-12M4.0AC(12V4.0AH);

e. The replacement battery is recyclable, please contact a local battery recycling agency for processing.

Note: In order to ensure that the replacement battery meets the requirements of the control system and to avoid the consequences of improper replacement

and operation, it is recommended that you contact the after-sales service staff to help with replacement.

Annex2:"Installing"the"printer"paper"for"the"optional"printer"

Automatic printing:

When the printing interval Pt is not 0, the printer prints the current data every Pt minutes.

Note: When the printing interval Pt is less than the recording interval SCy, it is printed according to the recording interval; the remaining printing intervals are

printed as an integral multiple of the recording interval Scy, that is: the printing interval Pt should be set as an integral multiple of the recording interval.

Manual printing:

When the key is unlocked and the working voltage is normal, press the print key to display "P01" by the digital tube, press the up key or down key to adjust

"P00~P07." Press the set/mute multiplexing key or print key, and the printer will cancel the manual printing (P00) or print the data recorded in the previous

days (1 ~ 7), with the data interval same as the automatic printing interval.

Printer Paper:

The printing paper comes pre-installed. When the printer is out of paper, you can replace it

with the same type of paper. The installation steps are as follows:

1. Press the cylinder button on the printer and open the cover of the printer.

2. Put print paper into the printer box and pull the paper roll end out of the printer cover.

3. Replace the cover of the printer.

Annex3:"Remote"alarm"terminal"and"RS485"interface"

The remote alarm terminal is installed in the back of freezer and the alarm signal output is by

the terminal. The

terminal bearing capacity is DC 30V, 2A.

AFTER-SALE SERVICE

BIOMEDICAL FREEZERS

Model Number

MLF!450

MLD!450

MLRF450

Capacity(L）

450

450,R:225,F:225

Internal

Size(W*D*H)mm

(650*570*627)*2

R:650*570*627，F:650*570*627

External

Size(W*D*H)mm

810*735*1960

Package

Size(W*D*H)mm

895*820*2035

NW/GW(Kgs)

136/148

144/156

146/159

Performance

Temperature Range

-10～-25℃

-20～-40℃

R:2～8，F:-10～-40

Ambient Temperature

16-32℃

Cooling Performance

-25°C

-40°C

R:5, F:-40

Climate Class

Controller

Microprocessor

Display

Digital display

Refrigeration

Compressor

2pcs

Cooling Method

Direct cooling

R: Forced air cooling , F:Direct cooling

Defrost Mode

Manual

R:Automatic, F:Manual

Refrigerant

R600a

R290

R:R600a,F:290

Insulation

Thickness(mm)

R：80, F：80

Construction

External Material

Powder coated material

Inner Material

Aluminum plate with spraying

Shelves

6*2(ABS)

R:3(coated steel wired shelf),F:6(ABS)

External Lock

Yes

Lighting

LED

Access Port

2pcs. Ø 25 mm

Casters

4（2 caster with brake）

Data Logging/

Interval/Recording

Time

USB/Record every 10 minute / 2 years

Backup Battery

Yes

Door

Alarm

Temperature

High/Low temperature,High ambient

temperature

High/Low temperature,High ambient

temperature

High/Low temperature,High ambient

temperature

Electrical

Power failure，Low battery

System

Sensor error,Door ajar, USB datalog failure,

Main board communication error,

Sensor error,Door ajar, USB datalog failure,

Main board communication error,

Sensor error, Door ajar, USB datalog

failure

Electrical

Power Supply(V/HZ)

110V±10%, 60Hz

Rated Current(A)

1.9

3.85

3.05

Options Accessory

System

Printer, RS485, RS232 Remote alarm

contact

Printer, RS485, RS232 Remote alarm

contact

Printer, RS485, RS232 Remote alarm

contact

SPECIFICATIONS

PART VIII SPECIFICATIONS

PART IX!WARRANTY INFORMATION

Please speak to your retailer before calling us if you did not purchase your freezer directly from KingsBottle.

WHO IS COVERED: This warranty is extended only to the original end-user purchaser or the person receiving the product as a gift, and shall not be extended

to any other person or transferee.

LIMITED WARRANTY – If your freezer is not operating properly, KingsBottle reserves the right to repair or replace the freezer. KingsBottle may request the

consumer to contact a local refrigeration company to service the freezer. All cost for labor and materials is covered for 2-year from the date of receipt. If

KingsBottle deems the unit not repairable, KingsBottle will use the value of your original order toward a replacement (Any replacement unit will follow the

warranty terms of the initial purchase). For customer service, please e-mail us via [email protected].

THE LIMITED WARRANTY DOES NOT COVER: Damage due to such things as an accident, misuse, abuse, mishandling, neglect, unauthorized repair or

any other cause beyond the control of the seller whether similar or dissimilar to the foregoing. Purchaser understands and acknowledges that the goods sold

here are Biomedical Freezers, which are for the storage of biological products, vaccines, drugs. Purchaser assumes all the risk of using these units, including

the risk of spoilage, humidity variations, temperature variations, leaks, ﬁres, water damage, mold, mildew, dryness and similar perils that may occur.

SPECIAL NOTE: Warranty is only honored for the unit which is used in the countries where the unit was initially purchased. And, if your product was

purchased at any 3rd party retailer and not directly from KingsBottle, we do not offer an extended warranty policy. You MUST contact the retailer of purchase

directly. In the event your retailer does not offer an extended warranty plan, we recommend you contact a third party warranty provider. However, regardless of